Magnetic Fields

Are the magnetic field lines in the picture correct?

• Yes, because they point from north to south.

• No, because they point from north to south (they're supposed to go the other way).

• Yes, because the North pole is on the left in all pictures.

• No, because the North pole is on the left in all pictures (it's supposed to be on the right).

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Looking at the field lines in this picture, these two magnets are ________

• Attracting

• Repelling

• Attracting and Repelling

• Doing nothing

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Where is the magnetic field the strongest around a bar magnet?

• far away from the magnet

• at the side of the magnet

• at the poles

• above the magnet

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What happens when two north poles of a magnet are placed together?

• they repel

• they attract

• they cancel each other out

• the strength of the magnet is doubled

Tags

NGSS.MS-PS2-3

Iron filings can be used to show ​ (a)   which is where the magnetic force occurs,

• magnetic field

• poles

• temporary magnets

• force

Answer explanation

Iron filings align along the magnetic field lines, visually demonstrating the area where the magnetic force is present. Thus, the correct term to fill in the blank is 'magnetic field'.

Tags

NGSS.MS-PS2-5

A north pole and a south pole will attract.

• True

• False

Tags

NGSS.MS-PS2-3

Magnetic field lines are closet together at the __________.

• poles

• lines

Tags

NGSS.MS-PS2-5

Magnets can interact without touching.

• True

• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Magnetic field lines always cross.

• True

• False

The motion of liquid _______ in the Earth's core creates a magnetic field.

• Iron

• Magnesium

Tags

NGSS.HS-ESS2-3